Public bug reported:

I had the widescreen resolution for my projector set up fine in 7.10,
but I have been living with "Low resolution mode" since I upgraded to
8.04. Something has obviously changed and broken things and I have no
idea what.

I have tried every driver I can and nothing has fixed this problem. I
know that there have been lots of people with this problem and some are
getting things fixed by using the latest beta from nvidia (173.xx).
However, if I install this driver, not only do I still not have the
resolution that I'm used to, but I'm told that the driver requires a CPU
with SSE (I have a 1.2GB Athlon CPU which does not have SSE).

I realise that the last bit is a nvidia driver issue, but I had all of
this working fine in Ubuntu 7.10 so something has broken things quite
badly for lots of people in Ubuntu 8.04.

I currently have the nvidia-glx package installed. I have attached my
current Xorg.0.log file. And here is the xorg.conf file which worked
fine for me in the past.

xorg.conf:
# xorg.conf (xorg X Window System server configuration file)
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#

Section "ServerLayout"
        Identifier      "Default Layout"
  screen 0 "Default Screen" 0 0
        Inputdevice     "Generic Keyboard"
        Inputdevice     "Configured Mouse"
EndSection

# Attempt to stop monitor going to sleep and need waking up
##Section "ServerFlags"
##      Option          "BlankTime"     "0"
##      Option          "StandbyTime"   "0"
##      Option          "SuspendTime"   "0"
##      Option          "OffTime"       "0"
##EndSection

Section "Files"
        # path to defoma fonts
        Fontpath        "/usr/share/fonts/X11/misc"
        Fontpath        "/usr/share/fonts/X11/cyrillic"
        Fontpath        "/usr/share/fonts/X11/100dpi/:unscaled"
        Fontpath        "/usr/share/fonts/X11/75dpi/:unscaled"
        Fontpath        "/usr/share/fonts/X11/Type1"
        Fontpath        "/usr/share/fonts/X11/100dpi"
        Fontpath        "/usr/share/fonts/X11/75dpi"
        Fontpath        "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection


# these were the ones in the working benq 10W xorg.conf file that I modified.
#Section "Module"
#    Load           "glx"
#    Load           "v4l"
#    Load           "vnc"
#EndSection

Section "Module"
        Load            "i2c"
        Load            "bitmap"
        Load            "ddc"
        Load            "extmod"
        Load            "freetype"
        Load            "int10"
        Load            "vbe"
###     Load            "vnc"
        Load            "glx"
        Load            "v4l"
EndSection


Section "InputDevice"
        Identifier      "Generic Keyboard"
        Driver          "kbd"
        Option          "CoreKeyboard"
        Option          "XkbRules"      "xorg"
        Option          "XkbModel"      "pc105"
        Option          "XkbLayout"     "gb"
EndSection

Section "InputDevice"
        Identifier      "Configured Mouse"
        Driver          "mouse"
        Option          "CorePointer"
        Option          "Device"        "/dev/input/mice"
        Option          "Protocol"      "ImPS/2"
        Option          "ZAxisMapping"  "4 5"
        Option          "Emulate3Buttons"       "true"
EndSection

Section "Monitor"
        Identifier      "BenQ W100"
        Modelname       "BenQ W100"
        ##    HorizSync       31.0 - 82.0
        ##    VertRefresh     48.0 - 85.0
        ##    # These are 'standard' mode lines I found at
        ##    # http://www.mythtv.org/wiki/index.php/Modeline_Database
        ##    ModeLine       "480p" 23.94 640 664 736 760 480 482 488 525
        ##    ModeLine       "720p" 74.16 1280 1320 1376 1648 720 722 728 750
        ##    ModeLine       "1080i" 74.25 1920 1960 2016 2200 1080 1082 1088 
1125 Interlace
        ##    ModeLine       "1080p" 148.5 1920 1960 2016 2200 1080 1082 1088 
1125
  modeline  "[EMAIL PROTECTED]" 31.5 640 672 736 832 400 401 404 445 -hsync 
+vsync
  modeline  "[EMAIL PROTECTED]" 31.5 640 672 736 832 350 382 385 445 +hsync 
-vsync
  modeline  "[EMAIL PROTECTED]" 35.5 720 756 828 936 400 401 404 446 -hsync 
+vsync
  modeline  "[EMAIL PROTECTED]" 36.0 800 824 896 1024 600 601 603 625 +hsync 
+vsync
  modeline  "[EMAIL PROTECTED]" 50.0 800 856 976 1040 600 637 643 666 +hsync 
+vsync
  modeline  "[EMAIL PROTECTED]" 49.5 800 816 896 1056 600 601 604 625 +hsync 
+vsync
  modeline  "[EMAIL PROTECTED]" 56.3 800 832 896 1048 600 601 604 631 +hsync 
+vsync
  modeline  "[EMAIL PROTECTED]" 40.0 800 840 968 1056 600 601 605 628 +hsync 
+vsync
  modeline  "[EMAIL PROTECTED]" 64.995 1152 1178 1314 1472 768 771 777 806 
+hsync +vsync
  modeline  "1280x854" 80.0 1280 1309 1460 1636 854 857 864 896 +hsync +vsync
  modeline  "[EMAIL PROTECTED]" 80.14 1280 1344 1480 1680 768 769 772 795 
-hsync +vsync
  modeline  "[EMAIL PROTECTED]" 74.48 1280 1336 1472 1664 720 721 724 746 
-hsync +vsync
  modeline  "[EMAIL PROTECTED]" 107.21 1280 1360 1496 1712 800 801 804 835 
-hsync +vsync
  modeline  "[EMAIL PROTECTED]" 102.98 1280 1360 1496 1712 768 769 772 802 
-hsync +vsync
  modeline  "[EMAIL PROTECTED]" 60.47 1280 1328 1456 1632 720 721 724 741 
-hsync +vsync
  modeline  "[EMAIL PROTECTED]" 83.46 1280 1344 1480 1680 800 801 804 828 
-hsync +vsync
  modeline  "[EMAIL PROTECTED]" 136.49 1440 1536 1688 1936 900 901 904 940 
-hsync +vsync
  modeline  "[EMAIL PROTECTED]" 106.47 1440 1520 1672 1904 900 901 904 932 
-hsync +vsync
  modeline  "[EMAIL PROTECTED]" 136.36 1600 1704 1872 2144 1024 1025 1028 1060 
-hsync +vsync
  modeline  "[EMAIL PROTECTED]" 147.14 1680 1784 1968 2256 1050 1051 1054 1087 
-hsync +vsync
  modeline  "[EMAIL PROTECTED]" 188.07 1680 1800 1984 2288 1050 1051 1054 1096 
-hsync +vsync
  modeline  "[EMAIL PROTECTED]" 193.16 1920 2048 2256 2592 1200 1201 1204 1242 
-hsync +vsync
        Option          "DPMS"
        Option          "UseEdidDpi"    "FALSE"
        Option          "DPI" "120 x 120"
        ##      see if removing this stops the weird movig edge of screen thing
        ##      DisplaySize     325 182
        Gamma   1.0
EndSection

Section "Device"
        Identifier      "nVidia Corporation NV34 [GeForce FX 5200]"
        Boardname       "nv"
        Busid           "PCI:1:0:0"
        Driver          "nvidia"
        ##      Screen  0
        Option          "AddARGBVisuals"        "True"
####            Option          "AddARGBGLXVisuals"     "True"          Not 
sure where this came from, why it was there, or why it got removed
        Option          "NoLogo"        "True"
EndSection

#Section "Device"
#    Identifier     "nVidia Corporation NV18 [GeForce4 MX 440 AGP 8x]"
#    Driver         "nvidia"
#    BoardName      "nv"
#    Option         "AddARGBVisuals" "True"
#    Option         "AddARGBGLXVisuals" "True"
#    Option         "NoLogo" "True"
#EndSection

Section "Screen"
        Identifier      "Default Screen"
        Device          "nVidia Corporation NV34 [GeForce FX 5200]"
        Monitor         "BenQ W100"
        # Allow VNC access to this screen
####    Option          "SecurityTypes" "VncAuth"
####    Option          "UserPasswdVerifier"    "VncAuth"
####    Option          "PasswordFile"  "/root/.vnc/passwd"
        Option          "UseEDID"       "False"
        Option          "FlatPanelProperties"   "Scaling = native"
        Option          "ExactModeTimingsDVI"   "true"
        Option          "ModeValidation"        "NoDFPNativeResolutionCheck, 
AllowNon60HzDFPModes, NoEdidMaxPClkCheck, NoMaxPClkCheck, NoHorizSyncCheck, 
NoVertRefreshCheck, NoEdidDFPMaxSizeCheck, NoEdidModes"
        Option          "AddARGBGLXVisuals"     "True"
        # Disable modeline validating as much as possible
        Defaultdepth    24
        SubSection "Display"
                Depth   24
                ##              Virtual 1920    1200
                Modes           "[EMAIL PROTECTED]"     "[EMAIL PROTECTED]"     
"[EMAIL PROTECTED]"     "[EMAIL PROTECTED]"     "[EMAIL PROTECTED]"     "[EMAIL 
PROTECTED]"     "[EMAIL PROTECTED]"     "[EMAIL PROTECTED]"     "[EMAIL 
PROTECTED]"     "[EMAIL PROTECTED]"     "1280x854"      "[EMAIL PROTECTED]"     
"[EMAIL PROTECTED]"     "[EMAIL PROTECTED]"     "[EMAIL PROTECTED]"     "[EMAIL 
PROTECTED]"     "[EMAIL PROTECTED]"     "[EMAIL PROTECTED]"     "[EMAIL 
PROTECTED]"     "[EMAIL PROTECTED]"     "[EMAIL PROTECTED]"     "[EMAIL 
PROTECTED]"
        EndSubSection
EndSection

Section "Extensions"
        Option          "Composite"     "Enable"
EndSection


I'm currently left with the option of upgrading my CPU, motherboard, memory and 
graphics card or deleting everything and going back to 7.10. I find that quite 
a poor result from an upgrade. Is there any hope of this being resolved or are 
those my choices?

** Affects: ubuntu
     Importance: Undecided
         Status: New

-- 
resolution broken using 5200 nvidia card with Ubuntu 8.04
https://bugs.launchpad.net/bugs/236730
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